Hi dv and thanks for your bug report. I adjusted the bug summary, I hope I got it right. I also tagged the bug regression-release (see [1]).
It would be interesting to know if this bug is present in the Jammy HWE kernel. Is it possible for you to install linux-image-generic-hwe-22.04, reboot and report back? To be clear: if the problem goes away this is not to be considered a fix, but it's a useful data point and possibly a workaround for you. You mentioned in a side channel that this problem "came back". Do you remember which Ubuntu release was affected by it, or (even better) if there was a bug report about it? Note: this is more of a drive-by comment than a real triage, which I'm leaving to the kernel team. [1] https://wiki.ubuntu.com/Bugs/Tags ** Summary changed: - NMI event on + NMI: IOCK error on HP MicroServer Gen8 after Focal -> Jammy upgrade ** Tags added: regression-release -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2012366 Title: NMI: IOCK error on HP MicroServer Gen8 after Focal -> Jammy upgrade Status in linux package in Ubuntu: Confirmed Bug description: After distro upgrade to new LTS "22" from 20 the HP microserver shows a critical NMI event in ILO Unrecoverable System Error (NMI) has occurred. System Firmware will log additional details in a separate IML entry if possible no hp modules are loaded except hpilo: lsmod |grep hp hpilo 24576 0 Despite the server is flashing "red" the System is functional. A few minutes after boot the kernel shows 4-5 of these kernel panics (see full log) but continue to run ok, the NMI flag in ILO appears simultaneously to this kernel error. this issue was not present before the distro-upgrade. [ 739.516183] NMI: IOCK error (debug interrupt?) for reason 61 on CPU 0. [ 739.516190] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.15.0-67-generic #74-Ubuntu [ 739.516194] Hardware name: HP ProLiant MicroServer Gen8, BIOS J06 04/04/2019 [ 739.516196] RIP: 0010:mwait_idle_with_hints.constprop.0+0x4f/0xa0 ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: linux-image-5.15.0-67-generic 5.15.0-67.74 ProcVersionSignature: Ubuntu 5.15.0-67.74-generic 5.15.85 Uname: Linux 5.15.0-67-generic x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Mar 20 23:54 seq crw-rw---- 1 root audio 116, 33 Mar 20 23:54 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu82.3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CasperMD5CheckResult: pass Date: Tue Mar 21 09:20:20 2023 InstallationDate: Installed on 2022-02-16 (397 days ago) InstallationMedia: Ubuntu-Server 20.04.3 LTS "Focal Fossa" - Release amd64 (20210824) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: HP ProLiant MicroServer Gen8 PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_GB.UTF-8 SHELL=/bin/bash ProcFB: 0 mgag200drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-67-generic root=UUID=ce9a2e21-54ae-4461-8086-c62bbcaa1481 ro RelatedPackageVersions: linux-restricted-modules-5.15.0-67-generic N/A linux-backports-modules-5.15.0-67-generic N/A linux-firmware 20220329.git681281e4-0ubuntu3.10 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to jammy on 2023-03-20 (0 days ago) dmi.bios.date: 04/04/2019 dmi.bios.vendor: HP dmi.bios.version: J06 dmi.chassis.type: 7 dmi.chassis.vendor: HP dmi.ec.firmware.release: 2.82 dmi.modalias: dmi:bvnHP:bvrJ06:bd04/04/2019:efr2.82:svnHP:pnProLiantMicroServerGen8:pvr:cvnHP:ct7:cvr:sku712317-421: dmi.product.family: ProLiant dmi.product.name: ProLiant MicroServer Gen8 dmi.product.sku: 712317-421 dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2012366/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp